/* * Copyright 2014-2015 Open Networking Laboratory * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.onosproject.sdnip; import com.google.common.collect.Sets; import com.google.common.util.concurrent.MoreExecutors; import org.junit.Before; import org.junit.Test; import org.onlab.junit.TestUtils; import org.onlab.junit.TestUtils.TestUtilsException; import org.onlab.packet.Ethernet; import org.onlab.packet.Ip4Address; import org.onlab.packet.Ip4Prefix; import org.onlab.packet.IpAddress; import org.onlab.packet.IpPrefix; import org.onlab.packet.MacAddress; import org.onlab.packet.VlanId; import org.onosproject.TestApplicationId; import org.onosproject.core.ApplicationId; import org.onosproject.incubator.net.intf.Interface; import org.onosproject.net.ConnectPoint; import org.onosproject.net.DeviceId; import org.onosproject.net.PortNumber; import org.onosproject.net.flow.DefaultTrafficSelector; import org.onosproject.net.flow.DefaultTrafficTreatment; import org.onosproject.net.flow.TrafficSelector; import org.onosproject.net.flow.TrafficTreatment; import org.onosproject.net.host.InterfaceIpAddress; import org.onosproject.net.intent.AbstractIntentTest; import org.onosproject.net.intent.Intent; import org.onosproject.net.intent.IntentService; import org.onosproject.net.intent.IntentState; import org.onosproject.net.intent.Key; import org.onosproject.net.intent.MultiPointToSinglePointIntent; import org.onosproject.routing.RouteEntry; import java.util.Collections; import java.util.HashSet; import java.util.Set; import static org.easymock.EasyMock.createMock; import static org.easymock.EasyMock.expect; import static org.easymock.EasyMock.replay; import static org.easymock.EasyMock.reset; import static org.easymock.EasyMock.verify; import static org.hamcrest.Matchers.is; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertThat; /** * This class tests the intent synchronization function in the * IntentSynchronizer class. */ public class IntentSyncTest extends AbstractIntentTest { private IntentService intentService; private static final ConnectPoint SW1_ETH1 = new ConnectPoint( DeviceId.deviceId("of:0000000000000001"), PortNumber.portNumber(1)); private static final ConnectPoint SW2_ETH1 = new ConnectPoint( DeviceId.deviceId("of:0000000000000002"), PortNumber.portNumber(1)); private static final ConnectPoint SW3_ETH1 = new ConnectPoint( DeviceId.deviceId("of:0000000000000003"), PortNumber.portNumber(1)); private static final ConnectPoint SW4_ETH1 = new ConnectPoint( DeviceId.deviceId("of:0000000000000004"), PortNumber.portNumber(1)); private IntentSynchronizer intentSynchronizer; private final Set interfaces = Sets.newHashSet(); private static final ApplicationId APPID = TestApplicationId.create("SDNIP"); @Before public void setUp() throws Exception { super.setUp(); setUpInterfaceService(); intentService = createMock(IntentService.class); intentSynchronizer = new IntentSynchronizer(APPID, intentService, MoreExecutors.newDirectExecutorService()); } /** * Sets up InterfaceService. */ private void setUpInterfaceService() { Set interfaceIpAddresses1 = Sets.newHashSet(); interfaceIpAddresses1.add(new InterfaceIpAddress( IpAddress.valueOf("192.168.10.101"), IpPrefix.valueOf("192.168.10.0/24"))); Interface sw1Eth1 = new Interface(SW1_ETH1, interfaceIpAddresses1, MacAddress.valueOf("00:00:00:00:00:01"), VlanId.NONE); interfaces.add(sw1Eth1); Set interfaceIpAddresses2 = Sets.newHashSet(); interfaceIpAddresses2.add( new InterfaceIpAddress(IpAddress.valueOf("192.168.20.101"), IpPrefix.valueOf("192.168.20.0/24"))); Interface sw2Eth1 = new Interface(SW2_ETH1, interfaceIpAddresses2, MacAddress.valueOf("00:00:00:00:00:02"), VlanId.NONE); interfaces.add(sw2Eth1); Set interfaceIpAddresses3 = Sets.newHashSet(); interfaceIpAddresses3.add( new InterfaceIpAddress(IpAddress.valueOf("192.168.30.101"), IpPrefix.valueOf("192.168.30.0/24"))); Interface sw3Eth1 = new Interface(SW3_ETH1, interfaceIpAddresses3, MacAddress.valueOf("00:00:00:00:00:03"), VlanId.NONE); interfaces.add(sw3Eth1); InterfaceIpAddress interfaceIpAddress4 = new InterfaceIpAddress(IpAddress.valueOf("192.168.40.101"), IpPrefix.valueOf("192.168.40.0/24")); Interface sw4Eth1 = new Interface(SW4_ETH1, Sets.newHashSet(interfaceIpAddress4), MacAddress.valueOf("00:00:00:00:00:04"), VlanId.vlanId((short) 1)); interfaces.add(sw4Eth1); } /** * Tests the synchronization behavior of intent synchronizer. We set up * a discrepancy between the intent service state and the intent * synchronizer's state and ensure that this is reconciled correctly. * * @throws TestUtilsException */ @Test public void testIntentSync() throws TestUtilsException { // // Construct routes and intents. // This test simulates the following cases during the master change // time interval: // 1. RouteEntry1 did not change and the intent also did not change. // 2. RouteEntry2 was deleted, but the intent was not deleted. // 3. RouteEntry3 was newly added, and the intent was also submitted. // 4. RouteEntry4 was updated to RouteEntry4Update, and the intent was // also updated to a new one. // 5. RouteEntry5 did not change, but its intent id changed. // 6. RouteEntry6 was newly added, but the intent was not submitted. // RouteEntry routeEntry1 = new RouteEntry( Ip4Prefix.valueOf("1.1.1.0/24"), Ip4Address.valueOf("192.168.10.1")); RouteEntry routeEntry2 = new RouteEntry( Ip4Prefix.valueOf("2.2.2.0/24"), Ip4Address.valueOf("192.168.20.1")); RouteEntry routeEntry3 = new RouteEntry( Ip4Prefix.valueOf("3.3.3.0/24"), Ip4Address.valueOf("192.168.30.1")); RouteEntry routeEntry4 = new RouteEntry( Ip4Prefix.valueOf("4.4.4.0/24"), Ip4Address.valueOf("192.168.30.1")); RouteEntry routeEntry4Update = new RouteEntry( Ip4Prefix.valueOf("4.4.4.0/24"), Ip4Address.valueOf("192.168.20.1")); RouteEntry routeEntry5 = new RouteEntry( Ip4Prefix.valueOf("5.5.5.0/24"), Ip4Address.valueOf("192.168.10.1")); RouteEntry routeEntry6 = new RouteEntry( Ip4Prefix.valueOf("6.6.6.0/24"), Ip4Address.valueOf("192.168.10.1")); RouteEntry routeEntry7 = new RouteEntry( Ip4Prefix.valueOf("7.7.7.0/24"), Ip4Address.valueOf("192.168.10.1")); MultiPointToSinglePointIntent intent1 = intentBuilder( routeEntry1.prefix(), "00:00:00:00:00:01", SW1_ETH1); MultiPointToSinglePointIntent intent2 = intentBuilder( routeEntry2.prefix(), "00:00:00:00:00:02", SW2_ETH1); MultiPointToSinglePointIntent intent3 = intentBuilder( routeEntry3.prefix(), "00:00:00:00:00:03", SW3_ETH1); MultiPointToSinglePointIntent intent4 = intentBuilder( routeEntry4.prefix(), "00:00:00:00:00:03", SW3_ETH1); MultiPointToSinglePointIntent intent4Update = intentBuilder( routeEntry4Update.prefix(), "00:00:00:00:00:02", SW2_ETH1); MultiPointToSinglePointIntent intent5 = intentBuilder( routeEntry5.prefix(), "00:00:00:00:00:01", SW1_ETH1); MultiPointToSinglePointIntent intent7 = intentBuilder( routeEntry7.prefix(), "00:00:00:00:00:01", SW1_ETH1); // Compose a intent, which is equal to intent5 but the id is different. MultiPointToSinglePointIntent intent5New = staticIntentBuilder(intent5, routeEntry5, "00:00:00:00:00:01"); assertThat(IntentUtils.equals(intent5, intent5New), is(true)); assertFalse(intent5.equals(intent5New)); MultiPointToSinglePointIntent intent6 = intentBuilder( routeEntry6.prefix(), "00:00:00:00:00:01", SW1_ETH1); // Set up expectation Set intents = new HashSet<>(); intents.add(intent1); expect(intentService.getIntentState(intent1.key())) .andReturn(IntentState.INSTALLED).anyTimes(); intents.add(intent2); expect(intentService.getIntentState(intent2.key())) .andReturn(IntentState.INSTALLED).anyTimes(); intents.add(intent4); expect(intentService.getIntentState(intent4.key())) .andReturn(IntentState.INSTALLED).anyTimes(); intents.add(intent5); expect(intentService.getIntentState(intent5.key())) .andReturn(IntentState.INSTALLED).anyTimes(); intents.add(intent7); expect(intentService.getIntentState(intent7.key())) .andReturn(IntentState.WITHDRAWING).anyTimes(); expect(intentService.getIntents()).andReturn(intents).anyTimes(); // These are the operations that should be done to the intentService // during synchronization intentService.withdraw(intent2); intentService.submit(intent3); intentService.submit(intent4Update); intentService.submit(intent6); intentService.submit(intent7); replay(intentService); // Start the test // Simulate some input from the clients. The intent synchronizer has not // gained the global leadership yet, but it will remember this input for // when it does. intentSynchronizer.submit(intent1); intentSynchronizer.submit(intent2); intentSynchronizer.withdraw(intent2); intentSynchronizer.submit(intent3); intentSynchronizer.submit(intent4); intentSynchronizer.submit(intent4Update); intentSynchronizer.submit(intent5); intentSynchronizer.submit(intent6); intentSynchronizer.submit(intent7); // Give the leadership to the intent synchronizer. It will now attempt // to synchronize the intents in the store with the intents it has // recorded based on the earlier user input. intentSynchronizer.leaderChanged(true); verify(intentService); } /** * Tests the behavior of the submit API, both when the synchronizer has * leadership and when it does not. */ @Test public void testSubmit() { IpPrefix prefix = Ip4Prefix.valueOf("1.1.1.0/24"); Intent intent = intentBuilder(prefix, "00:00:00:00:00:01", SW1_ETH1); // Set up expectations intentService.submit(intent); expect(intentService.getIntents()).andReturn(Collections.emptyList()) .anyTimes(); replay(intentService); // Give the intent synchronizer leadership so it will submit intents // to the intent service intentSynchronizer.leaderChanged(true); // Test the submit intentSynchronizer.submit(intent); verify(intentService); // Now we'll remove leadership from the intent synchronizer and verify // that it does not submit any intents to the intent service when we // call the submit API reset(intentService); replay(intentService); intentSynchronizer.leaderChanged(false); intentSynchronizer.submit(intent); verify(intentService); } /** * Tests the behavior of the withdraw API, both when the synchronizer has * leadership and when it does not. */ @Test public void testWithdraw() { IpPrefix prefix = Ip4Prefix.valueOf("1.1.1.0/24"); Intent intent = intentBuilder(prefix, "00:00:00:00:00:01", SW1_ETH1); // Submit an intent first so we can withdraw it later intentService.submit(intent); intentService.withdraw(intent); expect(intentService.getIntents()).andReturn(Collections.emptyList()) .anyTimes(); replay(intentService); // Give the intent synchronizer leadership so it will submit intents // to the intent service intentSynchronizer.leaderChanged(true); // Test the submit then withdraw intentSynchronizer.submit(intent); intentSynchronizer.withdraw(intent); verify(intentService); // Now we'll remove leadership from the intent synchronizer and verify // that it does not withdraw any intents to the intent service when we // call the withdraw API reset(intentService); replay(intentService); intentSynchronizer.leaderChanged(false); intentSynchronizer.submit(intent); intentSynchronizer.withdraw(intent); verify(intentService); } /** * MultiPointToSinglePointIntent builder. * * @param ipPrefix the ipPrefix to match * @param nextHopMacAddress to which the destination MAC address in packet * should be rewritten * @param egressPoint to which packets should be sent * @return the constructed MultiPointToSinglePointIntent */ private MultiPointToSinglePointIntent intentBuilder(IpPrefix ipPrefix, String nextHopMacAddress, ConnectPoint egressPoint) { TrafficSelector.Builder selectorBuilder = DefaultTrafficSelector.builder(); if (ipPrefix.isIp4()) { selectorBuilder.matchEthType(Ethernet.TYPE_IPV4); selectorBuilder.matchIPDst(ipPrefix); } else { selectorBuilder.matchEthType(Ethernet.TYPE_IPV6); selectorBuilder.matchIPv6Dst(ipPrefix); } TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment.builder(); treatmentBuilder.setEthDst(MacAddress.valueOf(nextHopMacAddress)); Set ingressPoints = new HashSet<>(); for (Interface intf : interfaces) { if (!intf.connectPoint().equals(egressPoint)) { ConnectPoint srcPort = intf.connectPoint(); ingressPoints.add(srcPort); } } MultiPointToSinglePointIntent intent = MultiPointToSinglePointIntent.builder() .appId(APPID) .key(Key.of(ipPrefix.toString(), APPID)) .selector(selectorBuilder.build()) .treatment(treatmentBuilder.build()) .ingressPoints(ingressPoints) .egressPoint(egressPoint) .constraints(SdnIpFib.CONSTRAINTS) .build(); return intent; } /** * A static MultiPointToSinglePointIntent builder, the returned intent is * equal to the input intent except that the id is different. * * @param intent the intent to be used for building a new intent * @param routeEntry the relative routeEntry of the intent * @return the newly constructed MultiPointToSinglePointIntent * @throws TestUtilsException */ private MultiPointToSinglePointIntent staticIntentBuilder( MultiPointToSinglePointIntent intent, RouteEntry routeEntry, String nextHopMacAddress) throws TestUtilsException { // Use a different egress ConnectPoint with that in intent // to generate a different id MultiPointToSinglePointIntent intentNew = intentBuilder( routeEntry.prefix(), nextHopMacAddress, SW2_ETH1); TestUtils.setField(intentNew, "egressPoint", intent.egressPoint()); TestUtils.setField(intentNew, "ingressPoints", intent.ingressPoints()); return intentNew; } }